First In First Out (FIFO): FIFO scheduling is a type of container used to perform FIFO operation in data items. The process of removing an element from the FIFO queue returns the element that has been in the queue for longer time. For example, consider people standing in the line to pay cash in a bank. Here, based on a first-in-first-out operation the person who is standing first will serve first. Priority: Priority scheduling is another type of queue in which each item contains “priority” related with it. The process of removing an element from the priority queue returns the item with the highest priority. For example, consider people standing in the line to buy a coupon ticket in a shopping mart. Here, each person assigned a priority based on their customer review point, so the person with highest priority serves first, apart from order of arrival. Round Robin (RR): Round robin is a preemptive algorithm . It is used to process each job based on the predetermined time slice called time quantum It helps to share the CPU (Central Processing Unit) equally for all jobs. The jobs in the READY queue are processed in the order in which it arrives for the required amount of time quantum and place the job to the end of the queue when the job processing is not completed. Weighted Fair Queuing (WFQ): Weighted Fair Queuing is an algorithm which has information of queuing process related to data packets in the network. It is also termed as Packet-by-Packet network because all the packets are scheduled on after the other.

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Chapter 4, Problem R14RQ

Program Plan Intro

First In First Out (FIFO):

FIFO scheduling is a type of container used to perform FIFO operation in data items.

The process of removing an element from the FIFO queue returns the element that has been in the queue for longer time.

For example, consider people standing in the line to pay cash in a bank.

Here, based on a first-in-first-out operation the person who is standing first will serve first.

Priority:

Priority scheduling is another type of queue in which each item contains “priority” related with it.

The process of removing an element from the priority queue returns the item with the highest priority.

For example, consider people standing in the line to buy a coupon ticket in a shopping mart.

Here, each person assigned a priority based on their customer review point, so the person with highest priority serves first, apart from order of arrival.

Round Robin (RR):

Round robin is a preemptive algorithm.

It is used to process each job based on the predetermined time slice called time quantum

It helps to share the CPU (Central Processing Unit) equally for all jobs.

The jobs in the READY queue are processed in the order in which it arrives for the required amount of time quantum and place the job to the end of the queue when the job processing is not completed.

Weighted Fair Queuing (WFQ):

Weighted Fair Queuing is an algorithm which has information of queuing process related to data packets in the network. It is also termed as Packet-by-Packet network because all the packets are scheduled on after the other.

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